Modified Newtonian dynamics (MOND) was proposed to explain the
flat rotational curves of spiral galaxies. A great variety of
observations indicate that the rotational velocity curves of all
spiral galaxies tend to some constant value [1]}. Among
them are the Oort discrepancy in the disk of Milky Way
[2]}, the velocity dispersions of dwarf Spheroidal
galaxies [3]} and the flat rotation curves of spiral
galaxies [4]}. These observations are in contradiction
with the prediction of Newtonian theory because Newtonian theory
predicts that objects that are far from the galaxy center have
lower velocities.
